Electrical properties of ice doped with NH3
The dielectric constant and conductivity of ice doped with different NH3 concentrations are studied by a.c. and d.c. methods at -10, -25 and -40°C. The plots of the real dielectric constant nearly coincide with those for pure ice at -10°C with a static constant εs ≅ 100; a higher divergence is obser...
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1966
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00147672_v62_n_p1955_Arias http://hdl.handle.net/20.500.12110/paper_00147672_v62_n_p1955_Arias |
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paper:paper_00147672_v62_n_p1955_Arias2023-06-08T14:37:51Z Electrical properties of ice doped with NH3 Arias, Delia E. The dielectric constant and conductivity of ice doped with different NH3 concentrations are studied by a.c. and d.c. methods at -10, -25 and -40°C. The plots of the real dielectric constant nearly coincide with those for pure ice at -10°C with a static constant εs ≅ 100; a higher divergence is observed at lower temperatures where εs<100 for CI ≥ 5×10-4N. The d.c. and high-frequency conductivities increase with NH3 concentration indicating that the number of ionic and Bjerrum defects is modified by the electrolyte. For CI ≥ 10-3 N, both conductivities are constant, showing that there occurs some phenomenon which limits the concentration of current carriers. The theory of the electrical behaviour of ice is applied and the discrepancy between the behaviour of NH 3- and HF-doped ice is explained by the different values of mobility of defects and of their dissociation from the electrolyte. Fil:Arias, D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1966 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00147672_v62_n_p1955_Arias http://hdl.handle.net/20.500.12110/paper_00147672_v62_n_p1955_Arias |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
The dielectric constant and conductivity of ice doped with different NH3 concentrations are studied by a.c. and d.c. methods at -10, -25 and -40°C. The plots of the real dielectric constant nearly coincide with those for pure ice at -10°C with a static constant εs ≅ 100; a higher divergence is observed at lower temperatures where εs<100 for CI ≥ 5×10-4N. The d.c. and high-frequency conductivities increase with NH3 concentration indicating that the number of ionic and Bjerrum defects is modified by the electrolyte. For CI ≥ 10-3 N, both conductivities are constant, showing that there occurs some phenomenon which limits the concentration of current carriers. The theory of the electrical behaviour of ice is applied and the discrepancy between the behaviour of NH 3- and HF-doped ice is explained by the different values of mobility of defects and of their dissociation from the electrolyte. |
| author |
Arias, Delia E. |
| spellingShingle |
Arias, Delia E. Electrical properties of ice doped with NH3 |
| author_facet |
Arias, Delia E. |
| author_sort |
Arias, Delia E. |
| title |
Electrical properties of ice doped with NH3 |
| title_short |
Electrical properties of ice doped with NH3 |
| title_full |
Electrical properties of ice doped with NH3 |
| title_fullStr |
Electrical properties of ice doped with NH3 |
| title_full_unstemmed |
Electrical properties of ice doped with NH3 |
| title_sort |
electrical properties of ice doped with nh3 |
| publishDate |
1966 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00147672_v62_n_p1955_Arias http://hdl.handle.net/20.500.12110/paper_00147672_v62_n_p1955_Arias |
| work_keys_str_mv |
AT ariasdeliae electricalpropertiesoficedopedwithnh3 |
| _version_ |
1768544485740904448 |